MOV to FLAC on iPhone

Safari on iOS 15.4 and newer runs the converter completely, on the phone itself. There is no App Store download — and no converter app quietly uploading your recordings to its own servers. MOV files convert to FLAC here the same way — nothing to install.

If the file is in Voice Memos or Photos, tap the share icon and choose 'Save to Files' first — that makes it visible to Safari's file picker. The converted file lands in Files (Downloads by default), from where you can share it into Messages, Mail, or any app. Your MOV comes out as FLAC, ready to use straight away.

The MOV files people convert on an iPhone almost always originate from iPhone videos, Mac screen recordings, and camera footage, and MOV is Apple's QuickTime container, and the video track is almost the whole file when all you wanted was the sound — which is precisely why they're stuck on the phone until you convert them to FLAC.

Storage-wise you're looking at about 12× less: 60 MB per minute becomes roughly 5. No "HD upscaling" is possible from a lossy source. The audio is identical — FLAC just stops it degrading further.

MOV to FLAC is a common iPhone snag specifically because MOV is Apple's QuickTime container, and the video track is almost the whole file when all you wanted was the sound, and FLAC is what your other apps and devices expect. Apple gives you no built-in way to convert audio at all, so the App Store is full of converter apps — many upload your recording to their own servers, show ads against it, and want a subscription. Doing it in Safari means the MOV file is processed on the phone itself and stays there, which matters when it is a voice memo, an interview, or a recording of your own family.

Your MOV file never leaves the handset. For iPhone that is the whole argument: iPhone videos are usually personal, and the App Store alternative frequently ships them to a company's servers as the price of a free conversion. Processing the MOV-to-FLAC conversion on-device means there is no server to trust in the first place.

Where does a MOV file even come from? Usually iPhone videos, Mac screen recordings, and camera footage. The catch is that MOV is Apple's QuickTime container, and the video track is almost the whole file when all you wanted was the sound. FLAC is the destination when you need uncompressed, edit-ready audio that every DAW and editor accepts. The size drop is the point — around 12× less data, which is what turns an unsendable file into an attachment. One honest note on this exact pair: MOV is already lossy, so moving to FLAC cannot restore detail the MOV encoder discarded — it hands you an uncompressed container, not better audio, and the value is a loss-free chain from here on.